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    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
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    <title>Document</title>
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<body>
    <h1>Hello World!</h1>
    <h2>测试</h2>
    <h3>测试3</h3>
    <hr>
    <br>
    <a href="https://www.baidu.com">这是一个链接</a>
    <hr>
    <img src="/img/初音.jpeg" width="300px" height="300px">
    <hr>
    无序列表
    <ul>
        <li>1</li>
        <li>2</li>
        <li>3</li>
        <li>4</li>
    </ul>
    <div>123</div>
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